420 Grams to Cups
420 grams of all-purpose flour is about 3 ⅜ cups, but 420 g of sugar is 2 ⅛ cups and 420 g of butter is 1 ⅞ cups. Pick your ingredient below for the exact answer.
420 g of all-purpose flour = 3 ⅜ cups (3.36 exactly)
How many cups is 420 grams?
It depends on what you are measuring. Grams measure weight and cups measure volume, so a light ingredient like flour fills more of the cup than a heavy one like honey. Here is 420 g of the most common baking ingredients in US cups.
| Ingredient | 420 g in cups | Decimal cups | Tablespoons |
|---|---|---|---|
| Flour | 3 ⅜ cups | 3.36 | 53 ¾ tbsp |
| Bread flour | 3 ⅓ cups | 3.31 | 52 ⅞ tbsp |
| Cake flour | 3 ⅔ cups | 3.68 | 59 tbsp |
| Almond flour | 4 ⅜ cups | 4.38 | 70 tbsp |
| Sugar | 2 ⅛ cups | 2.10 | 33 ⅝ tbsp |
| Brown sugar | 1 ⅞ cups | 1.91 | 30 ½ tbsp |
| Powdered sugar | 3 ½ cups | 3.50 | 56 tbsp |
| Butter | 1 ⅞ cups | 1.85 | 29 ⅝ tbsp |
| Vegetable oil | 1 ⅞ cups | 1.93 | 30 ⅞ tbsp |
| Water | 1 ¾ cups | 1.77 | 28 ⅜ tbsp |
| Milk | 1 ¾ cups | 1.71 | 27 ⅜ tbsp |
| Heavy cream | 1 ¾ cups | 1.76 | 28 ¼ tbsp |
| Greek yogurt | 1 ¾ cups | 1.71 | 27 ⅜ tbsp |
| Honey | 1 ¼ cups | 1.24 | 19 ¾ tbsp |
| White rice | 2 ¼ cups | 2.27 | 36 ⅓ tbsp |
| Rolled oats | 4 ⅔ cups | 4.67 | 74 ⅔ tbsp |
| Cocoa powder | 5 cups | 4.94 | 79 tbsp |
| Chocolate chips | 2 ½ cups | 2.47 | 39 ½ tbsp |
| Peanut butter | 1 ⅝ cups | 1.63 | 26 tbsp |
| Cream cheese | 1 ¾ cups | 1.81 | 29 tbsp |
How to measure 420 grams without a scale
For flour and other powders, spoon the ingredient into a dry cup and level it off. For 420 g of flour that means filling cups to about 3 ⅜ cups. For liquids like water or milk, 420 g is close to 420 ml, so a measuring jug works well.
Example: 420 g flour ÷ 125 g = 3.36 cups
Frequently asked questions
How many cups is 420 grams of flour?
420 grams of all-purpose flour is about 3 ⅜ cups (3.36 cups), spooned and leveled.
How many cups is 420 grams of sugar?
420 grams of granulated sugar is about 2 ⅛ cups (2.10 cups).
How many cups is 420 grams of butter?
420 grams of butter is about 1 ⅞ cups, or 29 ⅝ tablespoons.
How many cups is 420 grams of water?
420 grams of water is about 1 ¾ cups (420 ml is about 1.77 cups).
Related conversions
Last updated: November 2026. Values use the US cup (236.6 ml) and the spoon-and-level method for dry ingredients.